This is a set of chrome snap caps. This set is made by Show Chrome and is designed to cover screw heads for a much cleaner look. It includes 10 chrome caps and 10 special washers designed so that they hold the caps. These are available in three different sizes. Please select either 2/4 size screw (3/8" diameter cap), 6/8 size screw (1/2" diameter cap) or 10/12 size screw (5/8" diameter cap) when ordering. 3-50-10, 3-60-10, 3-70-10